Home / 929,981.21-1,395,023.78-290,373.28

Finding the Fourth Proportional to 929,981.21, 1,395,023.78 and 290,373.28

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Solution

The fourth proportional to 929,981.21, 1,395,023.78 and 290,373.28 is: 435,576.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,981.21 : 1,395,023.78 = 290,373.28 : x
  2. Step 2: Convert to fraction form
    929,981.21/1,395,023.78 = 290,373.28/x
  3. Step 3: Cross multiply
    929,981.21x = 1,395,023.78 × 290,373.28
  4. Step 4: Simplify right side
    929,981.21x = 405,077,635,761.98
  5. Step 5: Solve for x
    x = 405,077,635,761.98/929,981.21
  6. Step 6: Final answer
    x = 435,576.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.